Mark “Meezilini” Miles Jr. is accused of taking Ivy Harris to Hawaii, where she disappeared and was found murdered four days later.
As police were searching the neighborhood, the suspect flagged down officers claiming he himself had been robbed.
The victim was likely drunk and speeding, deputies say.
Police have arrested his mother and girlfriend on witness tampering charges, but have not yet taken him into custody.
A man came to the rescue of his neighbor and knocked down the suspect, who was carrying a 10-inch kitchen knife.
It has a street value of $1.5 million.
The victim had sought more than $5 million. The suspect, Ed Dyer, admitted to abusing as many as 15 Scouts.
Firefighters have stopped the spread of the two fires burning about five miles southeast of Cannon Beach.
The Oregon bill would require background checks on every gun sale in the state.
Classes are on a two-hour delay. The threat was in the form of a note, officials said.